Anyone who can tell me when to put the tranmission fluid into my newly acquired Puch 1976 Maxi this would really help. I am not familiar w? the bike and was anxious to ride it . I added the correct oil and gas mixture and it ran fine for a few days I am assuming the lack of transmission fluid could be my problem. Also if any Puch owners out there in New York have an owners manual for this thing that would be agreat thing, Thanks.